In medicine, the term “acellular” refers to a biological product or substance that has been purified or processed to remove cellular components. This can include products derived from bacterial or viral sources, such as vaccines or certain diagnostic tests.
For example, acellular vaccines are vaccines that are made using specific antigens (substances that can trigger an immune response) from a particular pathogen, rather than using the whole pathogen itself. This approach can help to reduce the risk of adverse reactions associated with live or attenuated vaccines, and can also help to improve the efficacy of the vaccine.
Acellular diagnostic tests, on the other hand, are tests that use purified antigens or antibodies to detect the presence of a particular pathogen or disease marker in a patient sample. By using purified components rather than whole cells, these tests can be more specific and sensitive, and can provide more accurate results.
Overall, the use of acellular products and substances in medicine can help to improve the safety and efficacy of vaccines, diagnostic tests, and other medical interventions. By removing cellular components, these products can reduce the risk of adverse reactions, improve accuracy and specificity, and enable more targeted approaches to disease prevention and treatment.